/Engine/Source/Runtime/Engine/Classes/Components/SkyLightComponent.h
Used to store lightmap data during RerunConstructionScripts
struct FPrecomputedSkyLightInstanceData : public [FSceneComponentInstanceData](API\Runtime\Engine\Components\FSceneComponentInstanceData)
float
AverageBrightness
FSHVectorRGB3
IrradianceEnvironmentMap
FGuid
LightGuid
TRefCountPtr<F...
ProcessedSkyTexture
This has to be refcounted to keep it alive during the handoff without doing a deep copy.